The NURBS book
3D geometric modelling based on NURBS: a review
Advances in Engineering Software
IEEE Computer Graphics and Applications
On increasing the developability of a trimmed NURBS surface
Engineering with Computers
A new method for speeding up ray tracing NURBS surfaces
Computers and Graphics
Numerical study on the influence of initial anisotropy on optimal blank shape
Finite Elements in Analysis and Design
Numerical study of springback using the split-ring test for an AA5754 aluminum alloy
Finite Elements in Analysis and Design
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In this paper we present a methodology for trimming 3D solid finite element meshes using a non-uniform rational B-spline (NURBS) surfaces representation. The algorithms applied in the identification of the spatial position of the finite element (FE) nodes and elements relative to the trimming surface are described, as well as, the explanation of the correction methods adopted to geometrically rearrange the trimmed elements. Three different strategies are proposed to adjust, with greater or lesser accuracy, the trimmed FE mesh to the trimming surface. The first consists only of an element elimination strategy, while the other two are based on a nodal stretching strategy, aiming for more accurate adjustment of the finite elements boundary to the trimming surface. Finally, to highlight the capabilities of the developed program, a mesh generation example is given by trimming a mesh with the shape of a blank automotive panel.